OPPO A91 vs Oppo A78
Quick Comparison
Oppo A78 has better RAM than OPPO A91. In terms of display resolution, OPPO A91 has better resolution of 2400 x 1080 than Oppo A78 which has resolution of 1612 x 720. Both have the same amount of internal memory.
| Name | OPPO A91 | Oppo A78 |
| RAM | 4 GB | 8 GB |
|---|---|---|
| Display | 6.4 in | 6.56 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 4025 mAh | 5000 mAh |
| Camera | 48 MP Quad | 50 MP + 2 MP Dual |
| Price | Rs. 19990 | Rs. 14399 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is December 20, 2019. The cost of OPPO A91 is Rs. 19990. The launch Date of the second phone is January 16, 2023. The cost of Oppo A78 is Rs. 14399.
Display comparison
Oppo A78 has larger screen size of 6.56 inches in comparison to OPPO A91's 6.4 inch screen. OPPO A91 has AMOLED Screen type where as Oppo A78 has IPS Screen type. OPPO A91 has display density of 408 PPI & Oppo A78 has only 269 PPI display density. In terms of screen to body ratio, OPPO A91 has better screen to body ratio of ~ 85.5% than Oppo A78's ~ 84%. Both mobiles have same aspect ratio of 20:9.
Memory comparison
Oppo A78's larger 8 GB RAM is better for playing games and all with respect to OPPO A91's lower 4 GB RAM. and both have same Internal Memory of 128 GB.
Camera comparison
Oppo A78's 50 MP + 2 MP Dual Rear Camera outclasses OPPO A91's 48 MP Quad Rear Camera in terms of resolution. OPPO A91 will be better choice if you're looking to click lot of selfies as it has better 16 MP Front Camera in comparison to Oppo A78's 8 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 9.0 and the second one on 12 version.
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Full Comparison
| Name | OPPO A91 | Oppo A78 |
| General | ||
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | December 20, 2019 | January 16, 2023 |
| Design | ||
| Dimensions | 73.3 x 160.2 x 7.9 mm | 75.1 x 163.8 x 8 mm |
| Weight | 172 g | 188 g |
| Colors | Glowing Black, Glowing Purple | |
| Display | ||
| Type | Color AMOLED Screen (16M Colors) | Color IPS Screen (16.7 M) |
| Touch | Yes | Yes |
| Size | 6.4 inches, 1080 x 2400 pixels | 6.56 inches, 720 x 1612 pixels, 90 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 408 PPI | ~ 269 PPI |
| Screen to Body Ratio | ~ 85.5% | ~ 84% |
| Glass Type | Corning Gorilla Glass 5 | Panda glass |
| Features | 100% DCI-P3, 600nits (Typical), 480nits (Typical) | |
| Notch | Yes, Water Drop Notch | Yes, Water Drop Notch |
| Memory | ||
| RAM | 4 GB | 8 GB |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 2.2 | |
| Card Slot | Yes | Yes |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | NR: n1/n5/n8/n28A/n41/n78 | |
| VoLTE | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 5 (802.11ac) | |
| Bluetooth | Yes, v4.2, A2DP, LE | Yes, v5.3, A2DP, LE, aptX HD |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Fingerprint Sensor | Yes, In Display | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass | Accelerometer, Proximity, Compass |
| 3.5mm Headphone Jack | Yes | Yes |
| NFC | Yes | |
| IP Rating | IP54 | |
| Camera | ||
| Rear Camera | 48 MP f/1.8 (Wide Angle) 8 MP f/2.3 (Ultra Wide) 2 MP f/2.4 2 MP f/2.4 (Depth Sensor) with autofocus | 50 MP f/1.8 (Wide Angle) 2 MP f/2.4 (Depth Sensor) with autofocus |
| Features | HDR, Panorama | Night, Videos, Photos, Portrait, Expert, Extra HD, Panoramic, Time-lapse, Slow-motion, Sticker, Text scanner, and Google Lens |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 16 MP f/2 (Wide Angle) | 8 MP f/2 (Wide Angle) with Screen Flash |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v9.0 (Pie), upgradable to v11 | Android v12 |
| Chipset | Mediatek Helio P70 | Mediatek Dimensity 700 5G |
| CPU | 2 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor |
| Core Details | 4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53 | 2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55 |
| GPU | Mali-G72 MP3 | Mali-G57 MC2 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | Yes | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 4025 mAh | 5000 mAh, Li-Po Battery |
| Fast Charging | Yes, 20W Fast Charging | Yes, 33W Fast Charging |